Answer:
the answer is 2x^2 − x − 2
<span>P(At least one sum of 8) = 1 - P(No sums of 8)
P(At least one sum of 8) = 1 - (1 - 5/36)^2
P(At least one sum of 8) = 1 - (31/36)^2
P(At least one sum of 8) = 1 - 961/1296
P(At least one sum of 8) = 335/1296
So the answer is choice B
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Answer:
-3/2 < x < 5......................
Answer:
82cm have a great day
Step-by-step explanation: have a great day :)
A good rule is to change 10 to 15 percent of the water each week. If your tank is heavily stocked, bump that up to 20 percent each week. A lightly stocked aquarium can maybe get by for two to four weeks, but this should be the maximum length of time between water changes.